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arXiv · 2005.06929

Demonstration of stable long-term operation of a kilohertz laser-plasma accelerator

Lucas Rovige·Julius Huijts·Aline Vernier·Vidmantas Tomkus·Valdas Girdauskas·Gediminas Raciukaitis·Juozas Dudutis·Valdemar Stankevic·Paulius Gecys·Marie Ouillé·Zhao Cheng·Rodrigo Lopez-Martens·Jérôme Faure
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Abstract

We report on the stable and continuous operation of a kilohertz laser-plasma accelerator. Electron bunches with 2.6 pC charge and 2.5 MeV peak energy were generated via injection and trapping in a downward plasma density ramp. This density transition was produced in a newly designed asymmetrically shocked gas nozzle. The reproducibility of the electron source was also assessed over a period of a week and found to be satisfactory with similar values of the beam charge and energy. These results show that the reproducibility and stability of the laser-plasma accelerator are greatly enhanced on the long-term scale when using a robust scheme for density gradient injection.

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Lucas Rovige, Julius Huijts, Aline Vernier, Vidmantas Tomkus, Valdas Girdauskas, Gediminas Raciukaitis, Juozas Dudutis, Valdemar Stankevic, Paulius Gecys, Marie Ouillé, Zhao Cheng, Rodrigo Lopez-Martens, Jérôme Faure. 2020-05-14. Demonstration of stable long-term operation of a kilohertz laser-plasma accelerator. https://doi.org/10.1103/physrevaccelbeams.23.093401

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